I have just found out that a large number of rainbow lorikeets have died around the suburbs of Melbourne, over 32 at one site. These deaths were caused by a bacterial infection of the gut which occurs when birds are fed an inappropriate diet. Needless to say many of these birds were found dead near feeders. The bacteria causing these deaths thrive in high sugar environments, which is exactly the sort of thing that people put out in the feeders. I can only repeat my earlier plea that, if you really love and care for the welfare of these birds, then don’t feed them! More information can be found at http://www.dpi.vic.gov.au/agriculture/pests-diseases-and-weeds/animal-diseases/vetsource/rainbow-lorikeet-deaths-in-melbourne.
Dr. F. Bunny